CN110021799B - Cooling device for battery - Google Patents

Cooling device for battery Download PDF

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Publication number
CN110021799B
CN110021799B CN201810507827.XA CN201810507827A CN110021799B CN 110021799 B CN110021799 B CN 110021799B CN 201810507827 A CN201810507827 A CN 201810507827A CN 110021799 B CN110021799 B CN 110021799B
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CN
China
Prior art keywords
cooling
battery
cooling device
case
battery module
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201810507827.XA
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Chinese (zh)
Other versions
CN110021799A (en
Inventor
梁承雨
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hyundai Motor Co
Kia Corp
Original Assignee
Hyundai Motor Co
Kia Motors Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hyundai Motor Co, Kia Motors Corp filed Critical Hyundai Motor Co
Publication of CN110021799A publication Critical patent/CN110021799A/en
Application granted granted Critical
Publication of CN110021799B publication Critical patent/CN110021799B/en
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
    • B60L58/26—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by cooling
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
    • B60L50/64—Constructional details of batteries specially adapted for electric vehicles
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K7/00—Use of ingredients characterised by shape
    • C08K7/02—Fibres or whiskers
    • C08K7/04—Fibres or whiskers inorganic
    • C08K7/14—Glass
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
    • C08L67/06—Unsaturated polyesters
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/625—Vehicles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/653—Means for temperature control structurally associated with the cells characterised by electrically insulating or thermally conductive materials
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6567—Liquids
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/218—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material
    • H01M50/22—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material of the casings or racks
    • H01M50/222—Inorganic material
    • H01M50/224—Metals
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
    • H01M50/24—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries from their environment, e.g. from corrosion
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/258—Modular batteries; Casings provided with means for assembling
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/262—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks
    • H01M50/264—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks for cells or batteries, e.g. straps, tie rods or peripheral frames
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries

Abstract

The invention discloses a cooling device of a battery, which can comprise: a battery module disposed in the metal case and in contact with an inner surface of the case; a cooling block made of a resin material, and is attached to the outer surface of the case at a position facing the portion in contact with the battery module; and a cooling passage provided in the cooling block so as to allow the coolant to flow therethrough.

Description

Cooling device for battery
Technical Field
The present invention relates to a cooling device for a battery, in which cooling performance of a battery module is enhanced by improving the structure of a cooling block.
Background
The high-voltage battery is used for supplying electric energy to drive the electric vehicle a fuel cell vehicle, or a hybrid vehicle.
The high-voltage battery includes a battery pack configured to generate a high voltage by connecting a plurality of device units or modules, and high power is generated using the battery pack.
In other words, the energy stored in the high-voltage battery is transmitted to the motor through the inverter for starting, accelerating, engine efficient operation point, etc., and when the engine generates surplus energy, the motor functions as a generator and the surplus energy is stored in the high-voltage battery.
Because the high-voltage battery has a large amount of use current and thus generates much heat inside thereof, a vehicle using the high-voltage battery is provided with a cooling system for cooling the high-voltage battery.
In particular, recently, as the driving distance of the vehicle using the driving force of the motor becomes longer, the battery system needs to be gradually upgraded, and thus, the problem of improving the cooling performance of the battery system is further highlighted.
The information disclosed in the background section of the invention is only for enhancement of understanding of the general background of the invention and is not to be taken as an admission or any form of suggestion that this information forms the prior art that is known to a person skilled in the art.
Disclosure of Invention
Aspects of the present invention are directed to providing a cooling device configured for a battery, in which cooling performance of a battery module is enhanced by improving the structure of a cooling block.
According to aspects of the present invention, there is provided a cooling device configured for a battery, the cooling device including: a battery module disposed in the metal case and in contact with an inner surface of the case; a cooling block including a resin material and attached to an outer surface of the case at a position facing a portion in contact with the battery module; and a cooling passage provided in the cooling block so as to allow the coolant to flow therethrough.
The battery module may be adhered to the inner surface of the case by a thermal interface material.
The cooling block may be manufactured by impregnating glass fibers with an unsaturated polyester resin.
The metal shell and the resin cooling block may be bonded together by a structural adhesive configured to bond the dissimilar materials.
The cooling channel may be disposed in contact with an outer surface of the metal housing.
The cooling channels may be provided along the longitudinal direction in which the battery modules are arranged.
The cover portion may protrude from the housing in a shape surrounding the side portion of the cooling block.
According to the exemplary embodiment of the present invention, since the cooling passage is integrally formed in the cooling block, the structure of the cooling block is simplified, and the price competitiveness of the product can be increased by improving the ease of assembly. Further, since the heat generated from the battery module is cooled by the coolant, and the cooling block having the heat insulating function prevents the heat transferred from the outside of the case from being transferred to the coolant, the cooling performance of the battery module can be further improved.
The method and apparatus of the present invention have other features and advantages that will be apparent from or are set forth in detail in the accompanying drawings and the detailed description that follows, which together serve to explain certain principles of the invention.
Drawings
Fig. 1 is a view exemplarily showing a structure of a cooling device configured for a battery according to an exemplary embodiment of the present invention; and
fig. 2 is a view conceptually showing the structure of a cooling block according to an exemplary embodiment of the present invention.
It is to be understood that the drawings are not necessarily to scale, presenting a somewhat simplified representation of various features illustrative of the basic principles of the invention. The specific design features of the invention disclosed herein, including, for example, specific dimensions, orientations, locations, and shapes, will be determined in part by the particular intended application and use environment.
Reference numerals refer to the same or equivalent parts of the invention throughout the several views of the drawings.
Detailed Description
Reference will now be made in detail to the various embodiments of the present invention, examples of which are illustrated in the accompanying drawings and described below. While the invention will be described in conjunction with the exemplary embodiments thereof, it will be understood that the present description is not intended to limit the invention to those exemplary embodiments. On the contrary, the invention is intended to cover not only the exemplary embodiments of the invention, but also various alternatives, modifications, equivalents and other embodiments, which may be included within the spirit and scope of the invention as defined by the appended claims.
Hereinafter, exemplary embodiments of the present invention will be described in more detail with reference to the accompanying drawings.
The cooling device configured for a battery of the present invention may include a battery module 3, a cooling block 5, and a cooling passage 7.
Looking at the invention in more detail with reference to fig. 1, first, the battery module 3 may be disposed in a metal housing 1 and in contact with the inner surface of the casing.
For example, the case 1 may be made of aluminum, and may be configured such that the upper case 1a covers the lower case 1b to define an inner space therein, in which the battery module 3 is disposed.
The cooling block 5 may be made of a resin material having a heat insulating function, and may be attached to the outer surface of the case 1 at a position facing the portion in contact with the battery module 3.
For example, when the battery module 3 is attached to the bottom surface of the lower case 1b, the cooling block 5 may be attached to the lower surface of the lower case 1 b.
The cooling passage 7 is provided in the cooling block 5 so that the cooling liquid flows therethrough.
In other words, in general, the cooling block 5 may include two parts (i.e., an upper part and a lower part) in the interior of which a cooling passage is formed by brazing the two parts, but in the exemplary embodiment of the present invention, the cooling passage 7 is integrally formed in the cooling block 5, simplifying the structure of the cooling block 5, and thus, the ease of assembly can be improved and the problem of poor adhesion can be solved.
Further, since the heat generated by the battery module 3 is conducted and cooled by the coolant, and the cooling block 5 having the heat insulating function prevents the heat transferred from the outside of the case 1 from being transferred to the coolant, the cooling effect of the battery module 3 can be improved.
Further, the cooling block 5 applied to the present invention may be manufactured from Sheet Molding Compound (SMC) which is a thermosetting composite molding material, wherein, as shown in fig. 2, the SMC may be manufactured by impregnating glass fibers with an unsaturated polyester resin to be in a sheet shape having a thickness of about 1 to 3 mm.
The SMC may be prepared by mixing an unsaturated polyester resin, glass fiber, mineral filler, and additives such as a hardener, a thickener, a mold release agent, etc., and may include 20 to 40% by weight of the resin.
SMC has a high degree of freedom in molding into products, makes it easy to manufacture large-sized products compared to thermoplastic resin materials, and has an advantage of easy molding into products having a complex structure compared to metal materials.
In addition, because the process can be unified, the equipment cost is lower than the cost of steel, which saves costs in a flexible manufacturing system, thus enabling an increase in price competitiveness of the product.
In addition to good heat resistance, SMC has a thermal expansion coefficient similar to that of steel, and has good impact resistance, corrosion resistance, adhesion, and coating properties, improving product quality.
Meanwhile, the battery module 3 of the present invention may be adhered to the inner surface of the case 1 through the thermal interface material 9.
In other words, by applying and bonding the thermal interface material 9 having high thermal conductivity between the battery module 3 that generates heat and the case 1 that is configured to conduct and discharge heat to the coolant side thereof, the battery module 3 is cooled more effectively.
Furthermore, in the exemplary embodiment of the present invention, the metal case 1 and the resin cooling block 5 may be bonded together by a structural adhesive 11, which may bond different materials.
In other words, the metal lower case 1b and the resin cooling block 5 may be bonded together by using the structural adhesive 11.
Furthermore, in an exemplary embodiment of the present invention, the cooling channel 7 may be configured to be in contact with the outer surface of the metal case 1. Furthermore, the cooling channels 7 may be provided along the longitudinal direction in which the battery modules 3 are arranged.
In other words, since the cooling channels 7 through which the coolant flows are directly disposed on the outer surface of the case 1, heat conducted to the battery modules 3 of the case 1 is more effectively dissipated, improving the cooling effect of the battery modules 3, and since the cooling channels 7 are disposed in the longitudinal direction in which the battery modules 3 are disposed, the heat dissipation area of the battery modules 3 is increased, further improving the cooling performance of the battery modules 3.
Further, the cover portion 1c may protrude from the housing 1 in a shape surrounding the side portion of the cooling block 5.
For example, since the cover portion 1c protrudes below the lower case 1b and is fixed to the side face of the cooling block 5, the cooling block 5 can be stably bonded to the case 1.
In the exemplary embodiment of the presently claimed invention, the thickness of the cover portion 1c is greater than the thickness of the cooling block 5.
The cooling channel 7 has an inverted trapezoidal shape such that an upper portion of the cooling channel 7 facing a portion in contact with the battery module 3 is larger than a lower portion of the cooling channel 7.
As described above, since the cooling passages 7 are integrally formed in the cooling block 5 in the aspects of the present invention, the structure of the cooling block is simplified, and the price competitiveness of the product can be increased by improving the ease of assembly.
Further, since the heat generated by the battery module 3 is cooled by the coolant and the cooling block 5 having the heat insulating function prevents the heat transferred from the outside of the case 1 from being transferred to the coolant, the cooling performance of the battery module 3 can be improved.
For ease of description and accurate definition in the appended claims, the features of the exemplary embodiments are described with reference to the locations of such features as displayed in the accompanying drawings using the terms "upper", "lower", "interior", "exterior", "upwardly", "downwardly", "forwardly", "rearwardly", "inwardly", "outwardly", "forwardly", and "rearwardly".
The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. They are not intended to be exhaustive or to limit the invention to the precise forms disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and utilize various exemplary embodiments of the invention and various alternatives and modifications thereof. It is intended that the scope of the invention be defined by the following claims and their equivalents.

Claims (7)

1. A cooling device of a battery, the cooling device comprising:
a battery module disposed in the case and in contact with an inner surface of the case;
a cooling block including a resin material and attached to an outer surface of the case at a position facing a portion in contact with the battery module; and
a cooling passage provided in the cooling block to allow a coolant to flow therethrough,
wherein the cooling channels are provided in contact with the outer surface of the case, and the cooling channels are provided along the longitudinal direction in which the battery modules are arranged,
a cover portion is formed protruding from the housing in a shape surrounding a side portion of the cooling block.
2. The cooling device of claim 1, wherein the housing is made of metal.
3. The cooling device of claim 1, wherein the battery module is bonded to an inner surface of the housing by a thermal interface material.
4. The cooling device according to claim 1, wherein the cooling block is manufactured by impregnating glass fibers with an unsaturated polyester resin.
5. The cooling device of claim 1, wherein the housing and the cooling block of resin are bonded together by a structural adhesive configured to bond the dissimilar materials.
6. The cooling device of claim 1, wherein a thickness of the cover portion is greater than a thickness of the cooling block.
7. The cooling device according to claim 1, wherein the cooling channel is of an inverted trapezoid shape, and an upper portion of the cooling channel facing a portion in contact with the battery module is larger than a bottom portion of the cooling channel.
CN201810507827.XA 2018-01-08 2018-05-24 Cooling device for battery Active CN110021799B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2018-0002342 2018-01-08
KR1020180002342A KR102554939B1 (en) 2018-01-08 2018-01-08 Cooling apparatus for battery

Publications (2)

Publication Number Publication Date
CN110021799A CN110021799A (en) 2019-07-16
CN110021799B true CN110021799B (en) 2024-04-16

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CN (1) CN110021799B (en)

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